docs: def cli(env, **args):
      """Create a placement group."""
      manager = PlacementManager(env.client)
      backend_router_id = helpers.resolve_id(manager.get_backend_router_id_from_hostname,
                                             args.get('backend_router'),
                                             'backendRouter')
      rule_id = helpers.resolve_id(manager.get_rule_id_from_name, args.get('rule'), 'Rule')
      placement_object = {
          'name': args.get('name'),
          'backendRouterId': backend_router_id,
          'ruleId': rule_id
      }
  
      result = manager.create(placement_object)
      click.secho("Successfully created placement group: ID: %s, Name: %s" % (result['id'], result['name']), fg='green')